[6-13C]-(2S,4S)-5-Chloroleucine: synthesis and incubation studies with cultures of the cyanobacterium, Lyngbya majuscula
作者:William H. Gerwick、Pauline Leslie、G.Cliona Long、Brian L. Marquez、Christine L. Willis
DOI:10.1016/s0040-4039(02)02572-8
日期:2003.1
[6-C-13]-(2S,4S)-5-Chloroleucine 12 was prepared in six steps and 26% overall yield from protected L-glutamic acid using (CH3I)-C-13 as the source of isotopic label. On feeding 12 to cultures of L. majuscula no incorporation of isotopic label into the trichlorinated marine natural product barbamide as detected. The synthesis of a novel dichloro amino acid 16 is also described. (C) 2002 Elsevier Science Ltd. All rights reserved.